Anatomy Commons^™

Recurrent Lateral Patellar Dislocation After Mpfl Repair With Subsequent Tibial Tubercle Anteromedialization And Concomiant Mpfl Reconstruction, Jacob Hardy, Anthony Thomas Drazick, Joshua Pratt, Jeremy M. Burnham

Clinical Practice in Athletic Training

Introduction: Patellar instability is a common knee pathology, particularly among adolescents and young adults, with reported incidence rates ranging from 7 to 77 per 100,000 person-years. Following an initial patellar dislocation, recurrence rates have been reported as high as 86%, particularly in patients with underlying anatomic risk factors. Identification of the multifactorial contributors to patellar instability is critical to guide appropriate management and prevent recurrent episodes. Common pathoanatomic factors associated with recurrent instability include trochlear dysplasia, patella alta, lateralized tibial tubercle, coronal or torsional malalignment, and abnormal patellar shift. This case report describes a patient who presented with a chronic …

Improving Entry-Level Athletic Training Student Confidence In Emergency Care: A Pilot Study, Michele Pye, Cade Watts, John Hunt, Kimberly Pritchard

Clinical Practice in Athletic Training

Introduction: Immediate and emergency care is essential to athletic training education and clinical practice. Athletic training students (ATS) may have limited exposure to emergencies during their clinical experiences, which can undermine their confidence. AT educators can improve ATS confidence and clinical reasoning using a simulation-based, learner-centered SNAPPS approach. SNAPPS consists of Summarizing the history and findings, Narrowing and Analyzing the differential diagnoses, Probing peers about uncertainties or confusion, Planning management, and Selecting case-related knowledge gaps for self-directed learning. This empowers students to control the learning environment while adding realism to encounters. The purpose of this pilot study was to determine …

Performance On The Timed Single-Leg Step-Down Test Is Correlated With Hip And Knee Biomechanics As Measured By 3d Markerless Motion Capture, Ghislain Aminake, Anthony Drazick, Christ Focht, Chloe Roy, Emily Clark, Savannah Knighton, Edward Austin, Jeremy Burnham

Clinical Practice in Athletic Training

Introduction: The timed single-leg step-down (SLSD) test is widely used in clinical and sports settings to assess lower extremity function and injury risk, yet the specific biomechanical determinants of performance on this test remain poorly understood. The purpose of this study is to investigate the relationship between performance on the timed SLSD test and hip and knee biomechanics captured by a markerless 3-D motion-analysis system. Methods: Twenty (20) healthy high school athletes with no recent history of lower extremity injury completed a 60-second timed single leg step down test. The number of quality SLSD repetitions (REPS) constituted their SLSD score. …

Facing Dissection, Aya E. Cannon

HCA Healthcare Journal of Medicine

The summer prior to beginning medical school, our anatomy professor prompted us to reflect on the experience of dissection and create an image based on our thoughts and feelings. I was thrilled by the assignment and immediately began listing my emotions. Excitement: For so long, I had worked toward this point, and now the quintessential medical school experience was within reach. I expressed my appreciation for the beauty and complexity of the human body through color and collage, using the vibrant layers to reflect the awe and range of emotions I felt. Nervousness: Despite my enthusiasm, I was faced with …

Impella 5.5 Versus Heartmate 3 In Left Ventricular Unloading, Hannah Frederick, Douglas Tran, Erik Sorenson, H. Todd Massey, Albert Hicks, Manjula Ananthram, Bartley P. Griffith, Aakash Shah

The VAD Journal

The Impella 5.5 (Abiomed) is increasingly used as a bridge to durable left ventricular assist device (LVAD) implantation in advanced heart failure, yet most studies focus on survival and transition success rather than left ventricular (LV) unloading or valvular effects. This study addresses this gap by comparing Impella 5.5 and HeartMate 3 (HM3, Abbott) in terms of unloading and cardiac support at similar flow rates. We conducted a retrospective study of nine patients who received Impella 5.5 before HM3 implantation. The primary outcome was the degree of LV unloading, as assessed by changes in left ventricular end-diastolic diameter (LVEDD). There …

The A1 Segment Of The Anterior Cerebral Artery: A Systematic Review Of Cadaveric Morphometry Studies, Marlena Muszynska, Emily Awdish, Afua Osei-Wusu, Parker Ballard

Annual Research Symposium

No abstract provided.

The P1 Segment Of The Posterior Cerebral Artery: A Systematic Review Of Cadaveric Morphometry Studies, Marlena Muszynska, Afua Osei-Wusu, Emily Awdish, Parker Ballard

Annual Research Symposium

No abstract provided.

Review Of Methodological Practices In Cadaveric Cerebral Arterial Morphometry: Variability In Contemporary Protocols (2015-2025), Marlena Muszynska, Emily Awdish, Afua Osei-Wusu, Parker Ballard

Annual Research Symposium

No abstract provided.

What Did We Learn About Vads In 2024-2025?, Maya Guglin

The VAD Journal

This is our 11th annual literature review on left ventricular assist devices (LVADs). Our previous reports were well received by readers.^1-10 In prior years, we also included other forms of mechanical circulatory support (MCS); however, this year, we present a separate review focused exclusively on temporary MCS.

In this article, we summarize the most interesting, from our standpoint, publications from 2024 and 2025, with some inclusion of late 2023 studies that were initially released online before print. For the first time, we provide an independent review on short-term MSC devices, including the intra-aortic balloon pump, Impella (Abiomed), and extracorporeal …

Bilateral Congenital Radioulnar Synostosis - Case Report, Derek A. Diangelis, Matthew J. Hudson

Advances in Clinical Medical Research and Healthcare Delivery

A 2-year-old male presented to an orthopedic outpatient office due to a supination defect in both of his upper limbs. X-rays of the affected limbs revealed fusion of the proximal radioulnar joints indicating congenital radioulnar synostosis (CRUS). CRUS is abnormal development of the upper limbs occurring during weeks 3—7 of embryological development. Causes of CRUS include genetic syndromes and spontaneous mutations. Treatment options include nonoperative and surgical treatments, however, treatment is controversial due to a lack of clinical evidence. Proposed screening methods could help improve detection rates and improve clinical management. This report aims to increase awareness of CRUS and …

Nstemi Or Pericarditis: Which Came First?, Trisha K. Mehta, Steven Clark, Garrett Barb, Magdelynn Mege, Umber Waseem

Advances in Clinical Medical Research and Healthcare Delivery

Myocardial infarction (MI) is a common cardiac event often occurring in patients with a history of cardiovascular disease. MI is classified by the presence of ST segment elevation (STEMI) or non-ST segment elevation (NSTEMI). Pericarditis is inflammation of the pericardium usually caused by a bacterial or viral infection. The patient under discussion is an 86-year-old male with a previous history of coronary artery disease (CAD), hypertension (HTN), hyperlipidemia, and percutaneous coronary intervention (PCI). He presented with a three-week history of exertional chest pain that abated with rest and worsened while supine. EKG and laboratory findings supported a diagnosis of NSTEMI, …

Effects Of Peripheral Sympathetic Denervation On Phytohemagglutinin (Pha) Induced Cutaneous Swelling In The Hock And Tail Of Mice, Ayusha Pokharel '27, Masyn Naegele '26

Annual Student Research Poster Session

The sympathetic nervous system (SNS) carries stress signals directly to the site of injury and activates the immune system via direct neuronal innervation or release of systemic hormones. 6-hydroxydopamine (6-OHDA) is a neurotoxin that causes denervation of the SNS by eliminating the peripheral nerve terminals, which are responsible for sending the stress signals. The effect of sympathetic denervation on the localized immune response is unexplored in the literature. Therefore, our study aims to investigate the effect of 6-OHDA-induced sympathetic denervation on local inflammation following phytohemagglutinin (PHA)-induced swelling. Even under resting circumstances, some baseline level of stress is communicated to the …

Mechanical Characterization And Modeling Of Rat Myocardia Under The Influence Of Epirubicin, Abdallah Mahmoud Alkhaiyat

Theses and Dissertations

Cancer remains a predominant health challenge that is responsible for a significant portion of global morbidity and mortality. Epirubicin (EPI), a chemotherapeutic anti-cancer drug, has shown remarkable efficacy in combating various malignancies. However, it is known to have undesirable side effects on the heart, collectively referred to as cardiotoxicity. This research investigates the adverse effects of chemotherapy on cardiac contractility through an in vitro examination of the mechanics of healthy and infarcted animal heart tissues. Electrically stimulated slices of rat ventricular tissue were tested using an isometric force measurement tissue bath. The tissue slices were subjected to uniaxial stretching, allowing …

Real-Time Hemodynamic Deterioration Following Polymorphic Ventricular Tachycardia In A Patient With Preexisting Aicd Implanted With Lvad, Dhruvil Patel, Maya Guglin, Deepa Iyer, Chonyang Albert, Jagpreet Grewal, Kenneth Dulnuan

The VAD Journal

Ventricular arrhythmias (VAs) are common in patients with a left ventricular assist device (LVAD), but the literature remains inconclusive regarding the benefits of an automatic implantable cardioverter-defibrillator (AICD) in this population, especially in those with a preexisting device before LVAD implantation. Here, we report the acute hemodynamic consequences of polymorphic ventricular tachycardia in a patient with a preexisting biventricular AICD who was implanted with an LVAD (HeartMate 3). This case underscores the importance of considering AICD placement on a case-by-case basis and highlights the need for a well-designed study to establish its benefit in this population.

Direct Effects Of Capsaicin On Voltage-Dependent Calcium Channels Of Mammalian Skeletal Muscle, Dmytro Isaev, Tatiana Prytkova, Badarunnisa Mohamed, Mohamed Omar Mahgoub, Keun-Hang Susan Yang, Murat Oz

Pharmacy Faculty Articles and Research

Capsaicin, a naturally occurring polyphenol, is known to affect energy expenditure and muscle fatigue and modulate contractions in skeletal muscle. The L-type Ca²⁺ channels are known to be an important ion channel involved in the various muscle functions and the effect of capsaicin on the skeletal L-type Ca²⁺ channels is currently unknown. In this study, the effects of capsaicin and capsaicin analogs on depolarization-induced Ca²⁺ effluxes through L-type Ca²⁺ channels in transverse tubule membranes from rabbit skeletal muscle and L-type Ca²⁺ currents recorded using the whole-cell patch clamp technique in rat myotubes were examined. Capsaicin, …

The Role Of Extracellular Vesicles As Diagnostic Tools In Gut-Brain Axis Disorders, Patricia Marçal Da Costa, Paulo Iury Gomes Nunes, Gabriella Cunha Vieira Ciurleo, José Wagner Leonel Tavares Junior, Pedro Braga Neto, Ludmila Belayev, Reinaldo Barreto Oriá

School of Graduate Studies Faculty Publications

The gut–brain axis represents a dynamic two-way signaling network whose dysregulation has been implicated in a wide range of neurogastrointestinal disorders. In this context, extracellular vesicles (EVs) have emerged as critical mediators of intercellular signaling and as promising non-invasive biomarkers. Derived from host and microbial cells, EVs carry bioactive cargo—including proteins, lipids, nucleic acids, and metabolites—that reflect the physiological or pathological state of their cells of origin. Their ability to cross biological barriers, such as the blood–brain barrier, underscores their potential for diagnosing and monitoring gut–brain axis dysfunctions. In this mini-review, we integrate microbial and brain-derived EVs within the framework …

The Impact Of Heavy Resistance Training On Type Ii Muscle Fibers Throughout Female Reproductive Stages, Lily G. Colberg

Scripps Senior Theses

Type II muscle fibers, also known as fast-twitch muscle fibers, are reliant on aerobic glycolysis and are crucial for high-force contractions, mobility, and rapid movements, such as fast reflexes. Heavy resistance training has been found to increase type II muscle fiber concentration in young, middle-aged, and elderly individuals. However, there have been few studies conducted on female-only sample populations. In women, the impact of heavy resistance training on type II muscle fibers is affected by the progressive decline of estrogen that defines the transition throughout the four female reproductive stages: premenopause, perimenopause, late-transition menopause, and postmenopause. Menopausal estrogen depletion causes …

Severe Maternal Morbidity According To Sickle Cell Disease Genotype, Tetsuya Kawakita, Natsume Furukawa, Sora A. Jones, Salimah Navaz Gangji

Department of Obstetrics & Gynecology Faculty Publications

Background

Sickle cell disease (SCD) is a genetic hemoglobinopathy that disproportionately affects individuals of African descent and is associated with elevated risks of maternal complications. However, the contribution of specific SCD genotypes to severe maternal morbidity (SMM) and postpartum readmission remains poorly characterized at the population level.

Objective

We sought to examine the association between SCD genotypes-hemoglobin SS (HbSS) disease, hemoglobin SC (HbSC) disease, sickle thalassemia, and sickle cell trait-and SMM, hospital readmission, and related adverse maternal outcomes.

Study design

This was a retrospective cohort study using the Nationwide Readmissions Database from 2016 through 2022, representing over 20 million weighted …

Acute Aortic Dissection Masquerading As Testicular Torsion: A Case Report, Bruce M. Lo, Megyn K. Christensen, Coral E. Byrns, Benjamin Chidester

Department of Emergency Medicine Faculty Publications

Introduction: Aortic dissection is a rare but life-threatening condition with a high mortality rate if diagnosis is delayed. Aortic dissection classically presents with sudden-onset, sharp pain in the chest or back. However, atypical presentations can also occur, which could lead to a delay in diagnosis.

Case Report: A patient initially presented to the emergency department (ED) with left testicular pain ongoing for several hours. On examination, he had tenderness in the left lower quadrant abdomen and left testicle. A testicular ultrasound revealed decreased blood flow to the left testicle, raising concern for testicular torsion. The patient was taken to the …

Glial Cytokine Modulation Improves Sleep And Circadian Disruption In Female Saa Knock-In Mice Of Alzheimer’S-Related Pathology, Teresa Macheda, Margaret R. Hawkins, Carrie E. Johnson, Madison G. Lapid, Haleigh R. Whitlock, Savannah M. Shepard, Makayla F. Cox, Kelly N. Roberts, Leke Bytyqi, Heather M. Hash, Omar A. Abou El-Ezz, Mohammed Abou El-Ezz, Katharina Kohler, Sridhar Sunderam, Bruce F. O'Hara, Linda J. Van Eldik, Michael Paul Murphy, Marilyn J. Duncan, Adam D. Bachstetter

Neuroscience Faculty Publications

Introduction: Sleep and circadian disturbances are early Alzheimer's disease (AD) features, yet mechanisms linking amyloid pathology, neuroinflammation, and sex differences remain unclear.

Methods: We longitudinally assessed sleep, circadian rhythms, and cognition in female and male hAPP^SAA knock-in and control mice from 2 to 19 months using piezoelectric monitoring. Aged mice (15 months) received MW151, a glial cytokine inhibitor (2.5 mg/kg, every other day, 6 weeks).

Results: Only females exhibited midlife reductions in light-phase sleep, increased rhythm fragmentation, and reduced rhythm stability, coinciding with selective reversal learning deficits, effects independent of amyloid or cytokine burden. MW151 increased light-phase sleep and …